Grain growth inhibition of hardmetals during initial heat-up

Grain growth from homogeneous initial conditions: Anomalous grain growth and special scaling states.

We used the large-g Potts model on a two-dimensional lattice to study the evolution of the disordered cluster developed from a perfect hexagonal lattice with a single defect. The distribution functions were not stable, while the average area and the number of grains in the cluster grew linearly in time. However, the grains at the boundary of the cluster formed a well defined region which reache...

Initial blow-up solution of a semilinear heat equation

We study the existence and uniqueness of a maximal solution of equation ut − ∆u + f(u) = 0 in Ω× (0,∞), where Ω is a domain with a non-empty compact boundary, which satisfies u = g on ∂Ω × (0,∞), assuming that g and f are given continuous functions and f is also convex, nondecreasing, f(0) = 0 and verifies Keller-Osserman condition. We show that if the boundary of Ω satisfies the parabolic Wien...

Dust grain growth and settling in initial gaseous giant protoplanets

Dust grain growth and settling time inside initial gaseous giant protoplanets in the mass range 0.3 to 5 Jovian masses, formed by gravitational instability, have been investigated. We have determined the distribution of thermodynamic and physical variables inside the protoplanets solving the structure equations assuming their gas blobs to be fully convective and with this distribution we have c...

Heat Stress in Wheat during Reproductive and Grain-Filling Phases

II. IMPACT OF TERMINAL HEAT STRESS ..................................................................................................................................................2 A. Photosynthesis .......................................................................................................................................................................................................

Sensitivity of Texture Development during Grain Growth to Anisotropy of Grain Boundary Properties